holding51.dk DNS records

🖥️ Nameservers2 records 280ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 268ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.45	3600s	webcluster2.webpod12-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records5 records 263ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.251.127.27 2a00:1450:4001:c21::1b	lcfrai-in-f27.1e100.net lcfrai-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	142.250.147.26 2a00:1450:4025:c01::1a	rd-in-f26.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	172.253.152.27 2a00:1450:4010:c22::1b	yulpptr-in-f27.1e100.net yulpptr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	aspmx2.googlemail.com	142.250.147.27 2a00:1450:4025:c01::1b	rd-in-f27.1e100.net rd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	aspmx3.googlemail.com	172.253.152.27 2a00:1450:4010:c22::1b	yulpptr-in-f27.1e100.net yulpptr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)1 records 276ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10a:806b:58f:b498:f2ca	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 617ms

TXT Record
google-site-verification=tWHD1HCXCwBlDL5gMlUBp7DLlRhG070XYKikdNOIq3k

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 DMARC

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records

✗ No CAA records — any CA may issue certificates

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC500ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2026082301
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

280ms

A

268ms

MX

263ms

AAAA

276ms

TXT

617ms

CAA

206ms

HTTPS

183ms

TLSA

213ms

SOA

0ms

MTA-STS

262ms

DNSSEC

500ms

SRV

254ms

Total

3699ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-23 12:53:11	3699ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-08-02 18:21:20	8780ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-07-23 19:28:31	1300ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-07-11 13:54:28	914ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-07-02 20:09:30	1822ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-25 22:16:34	938ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-25 15:53:43	960ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-17 13:32:19	3347ms	2 NS 1 A 5 MX	🔒 Secure	View